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ipa: rpi: Add "focus" algorithm

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Adds FocusStatus to the image metadata, containing contrast measurements
across the image. Optionally also prints a contrast measure to the
console, to aid in manual adjustment of the lens. Note that it is not an
actual auto-focus algorithm that can drive a lens!

Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
This commit is contained in:
David Plowman 2020-05-28 15:51:32 +01:00 • committed by Laurent Pinchart
parent 0952f2014d
commit 23e15e72f9
5 changed files with 113 additions and 0 deletions
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31
src/ipa/raspberrypi/controller/rpi/focus.hpp Normal file
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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* Copyright (C) 2020, Raspberry Pi (Trading) Limited
*
* focus.hpp - focus algorithm
*/
#pragma once
#include "../algorithm.hpp"
#include "../metadata.hpp"
/*
* The "focus" algorithm. All it does it print out a version of the
* focus contrast measure; there is no actual auto-focus mechanism to
* control.
*/
namespace RPi {
class Focus : public Algorithm
{
public:
Focus(Controller *controller);
char const *Name() const override;
void Read(boost::property_tree::ptree const &params) override;
void Process(StatisticsPtr &stats, Metadata *image_metadata) override;
private:
bool print_;
};
} /* namespace RPi */